2160405340 has 48 divisors (see below), whose sum is σ = 4639192992. Its totient is φ = 844886016.

The previous prime is 2160405323. The next prime is 2160405343. The reversal of 2160405340 is 435040612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160405343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154312 + ... + 167728.

It is an arithmetic number, because the mean of its divisors is an integer number (96649854).

Almost surely, 2^2160405340 is an apocalyptic number.

2160405340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2160405340 is an abundant number, since it is smaller than the sum of its proper divisors (2478787652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2160405340 is a wasteful number, since it uses less digits than its factorization.

2160405340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13606 (or 13604 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2160405340 is about 46480.1607140079. The cubic root of 2160405340 is about 1292.7416680874.

Adding to 2160405340 its reverse (435040612), we get a palindrome (2595445952).

The spelling of 2160405340 in words is "two billion, one hundred sixty million, four hundred five thousand, three hundred forty".